{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["company founded place", "profession", "geographic distribution", "religion"], "input": "She theorized that soft sands in the Middle East would have made a two-wheeled precursor of the chariot impractical , and pointed to the four-wheeled carriages discovered by Sir Leonard Woolley in the so-called King 's Tomb in Ur , a Sumerian city that flourished in Lower Mesopotamia -LRB- now Iraq -RRB- about 4,500 years ago ."}
{"company founded place": [], "profession": [], "geographic distribution": [], "religion": []}